Peru's compulsory voting system, paired with modest enforcement of fines and longstanding patterns of abstention or blank ballots amid political fatigue, anchors trader expectations for second-round turnout near the first-round mark of 73.81%. The June 7 runoff between Keiko Fujimori and Roberto Sánchez occurred in a polarized environment focused on crime and economic divides, yet produced reported participation of 71.46% consistent with recent cycles and the roughly 27.3 million registered voters. This outcome reflects steady baseline mobilization across urban and rural areas despite geographic splits in support. Scenarios that could shift results outside the 70–75% band include unexpected logistical disruptions, intensified last-minute campaigning that raises participation, or heightened protest abstention in response to ongoing instability.